5-1 
5 Testing and Maintenance 
 
 
5.1 Introduction 
To ensure the monitor always functions normally, qualified service personnel should perform regular inspection, 
maintenance and test. This chapter provides a checklist of the testing procedures for the monitor with recommended 
test equipment and periodic maintenance schedule. The service personnel should perform the testing and 
maintenance procedures as required and use appropriate test equipment. 
 
The testing procedures provided in this chapter are intended to verify that the monitor meets the performance 
specifications. If the monitor or a module fails to perform as specified in any test, repairs or replacements must be 
done to correct the problem. If you have any question, contact Mindray Technical Support Department. 
 
CAUTION 
  All tests should be performed by qualified service personnel only. 
  Care should be taken to change the settings in [User Maintenance] and [Factory Maintenance] menus to 
avoid loss of data. 
  Service personnel should acquaint themselves with the test tools and make sure that test tools and cables 
are applicable. 
 
 
5.2 Preventative Maintenance 
Preventative maintenance refers specifically to actions taken to prevent inaccurate results in the eqipment. The 
following sections provide a list of recommended preventative maintenance procedures and their recommended 
frequencies. 
 
 
5.2.1 Preventative Maintenance Frequency 
Check/Maintenance Item  Frequency 
CO
2
 tests and 
calibration 
Leakage test  1. If the user suspects that the measurement is incorrect. 
2. Following any repairs or replacement of relevant module. 
3. Once a year. 
Performance test 
Calibration 
AG test 
Leakage test 
Performance test 
Calibration